Their sudden attack made us more of the danger around us.A. familiarB. particularC. awar

问题补充：

Their sudden attack made us more of the danger around us.

A. familiar

B. particular

C. aware

D. doubtful

答案：

A. familiar

B. particular

(答案→)C. aware

D. doubtful

解析：考查固定词组。Be aware of…意识到…；句意：他们突然的攻击让我们意识到周围的危险。ABD的意思与句意不符。故C正确。